High Purity Diaphragm Valve Graphics

High Purity Diaphragm Valve

The High Purity Diaphragm Valve is designed for precise and contamination-free fluid control in ultra-clean and corrosive environments. Featuring a flexible diaphragm that isolates the process fluid from the operating mechanism, this valve minimizes dead space and particle entrapment, ensuring high-purity performance. Manufactured from high-grade fluoropolymers such as PFA, PVDF, or PTFE, it offers excellent chemical resistance, thermal stability, and leak-free operation for critical applications.

Key Features of High Purity Diaphragm Valve

  • High-Purity Materials: Constructed from PFA, PVDF, or PTFE to ensure chemical inertness and ultra-clean operation.
  • Zero Dead Space Design: Prevents fluid stagnation and contamination in sensitive applications.
  • Leak-Free Isolation: Diaphragm seals the fluid path from external environment and actuator.
  • Precise Flow Control: Smooth throttling and shutoff capabilities ideal for process regulation.
  • Cleanroom Manufacturing: Produced in ISO Class 100 or better facilities to maintain purity standards.
  • Multiple Actuation Options: Manual, pneumatic, and electric actuators available.
  • Compatible with Clean Fluids: Ideal for DI water, acids, alkalis, solvents, and ultrapure chemicals.
  • Industry Certified: Meets SEMI F57, FDA, and USP Class VI standards.

Technical Information

Parameter Details
Size Range
1/4″ to 2″
Body Materials
PFA, PTFE, PVDF
Diaphragm Material
PTFE or EPDM (backed with reinforced elastomers if required)
Connection Types
Tube End, Flare, Socket Fusion, Spigot, Clamp
Max Operating Pressure
Up to 100 psi at 20°C (varies by size/material)
Temperature Range
PFA/PTFE: up to 260°C PVDF: up to 150°C
Internal Surface Finish
Ra < 15 µin (0.38 µm) for PFA/PTFE versions
Actuation Types
Manual, Pneumatic, Electric
Compliance Standards
SEMI F57, FDA, USP Class VI, ASTM D3222/D3307
Manufacturing Environment
ISO Class 100 or better cleanroom
Typical Applications
DI water systems, chemical dosing, biotech process lines, slurry control